Remote Frontend Engineer - Pixel-Perfect & Responsive

Itransition; España; Remote; EUR 91,000 - 130,000; Part time

Job summary

Mercor is seeking a Web Development Expert for a fully remote contract role priced up to $90/hr. You will render a reference page and two candidate replications at 1920×1080 and judge which is closer, across viewports.

You will compare fidelity, typography, spacing, color, borders, and assets; read source code, grade construction quality, and test responsiveness, noting defects like nav collapse. The role requires 3–8 years of web development, HTML/CSS mastery, and strong written English to

Qualifications

• 3–8 years of professional web development experience.
• Fluency across web eras and legacy layouts.
• Hands-on HTML and CSS with semantic markup, flexbox, grid, and media queries.
• Proficient in browser DevTools.
• Comfort with the command line and local server setup.
• Enough JavaScript to read scripts and understand DOM impact.
• Proficient technical English for task justification.
• Nice-to-have: RLHF, pixel-perfect design-to-code, ARIA accessibility.

Responsibilities

• Render a reference page and two replications at 1920×1080 and judge closeness.
• Diff visual fidelity: box model, typography, color, borders, images.
• Read source and grade construction quality; distinguish truly correct from merely looking correct.
• Test responsiveness and identify defects like nav collapse across viewports.
• Provide evidence-cited justifications for every preference.
• Use the "escape hatch" to flag when a task is truly unfeasible.

Skills

Frontend development

HTML/CSS

JavaScript basics

Browser DevTools

Command-line skills

Semantic HTML

English writing

Job description

Mercor is seeking a Web Development Expert for a fully remote contract role priced up to $90/hr. You will render a reference page and two candidate replications at 1920×1080 and judge which is closer, across viewports.

You will compare fidelity, typography, spacing, color, borders, and assets; read source code, grade construction quality, and test responsiveness, noting defects like nav collapse. The role requires 3–8 years of web development, HTML/CSS mastery, and strong written English to